This article has summarized pressure and necessity of establishing the reclaimed water reuse system and explicated its circumstances in the green estate.

概述了绿色小区建立中水回用系统的紧迫性、必要性，详细介绍了绿色小区中水回用系统建设。

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Secondly, it outlines the reclaimed water reuse condition of domestic and overseas, as well as setting and combination of water reuse system in residential district.

其次，概述了国内外中水回用的情况以及建筑小区中水回用系统的设置与组合。

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There is actual demand for water reuse for expressway service area given the fact of limited water resource and long distance to municipal water supply system.

高速公路服务区远离市政给水管网，用水紧张，有污水回用的现实需求。

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Others are more ambitious, requiring new construction or even an extensive rebuilding of city infrastructure consider what is needed to add a second set of pipes for a water-reuse system.

WSJ: How to Build a Greener City

The new building will reuse rain water to flush the toilets and a solar electric generating system will be installed on the roof.

BBC: Artist impression of the new building